package com.swotxu.mall.order.controller;

import com.swotxu.common.constant.MallUrlConstant;
import com.swotxu.common.exception.NoStockException;
import com.swotxu.mall.order.service.OrderService;
import com.swotxu.mall.order.vo.OrderConfirmVo;
import com.swotxu.mall.order.vo.OrderSubmitVo;
import com.swotxu.mall.order.vo.SubmitOrderResponseVo;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.concurrent.ExecutionException;

/**
 * @Date: 2022/4/30 19:10
 * @Author: swotXu
 */
@Slf4j
@Controller
public class OrderWebController {

    @Autowired
    OrderService orderService;

    /**
     * 去结算确认页
     *
     * @param model
     * @param request
     * @return
     * @throws ExecutionException
     * @throws InterruptedException
     */
    @GetMapping("/toTrade")
    public String toTrade(Model model, HttpServletRequest request) throws ExecutionException, InterruptedException {
        OrderConfirmVo confirmVo = orderService.confirmOrder();
        model.addAttribute("orderConfirmData", confirmVo);
        //展示订单确认的数据
        return "confirm";
    }

    /**
     * 下单功能
     *
     * @param vo
     * @return
     */
    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo vo, Model model, RedirectAttributes redirectAttributes) {
        try {
            SubmitOrderResponseVo responseVo = orderService.submitOrder(vo);
            //下单失败回到订单确认页重新确认订单信息
            log.info("订单提交的数据 {}", vo);
            if (responseVo.getCode() == 0) {
                //下单成功来到支付选择页
                model.addAttribute("submitOrderResp", responseVo);
                return "pay";
            }
            String msg = "下单失败；";
            switch (responseVo.getCode()) {
                case 1:
                    msg += "订单信息过期，请刷新再次提交";
                    break;
                case 2:
                    msg += "订单商品价格发生变化，请确认后再次提交";
                    break;
                case 3:
                    msg += "库存锁定失败，商品库存不足";
                    break;
            }
            redirectAttributes.addFlashAttribute("msg", msg);
        } catch (Exception e) {
            if (e instanceof NoStockException) {
                redirectAttributes.addFlashAttribute("msg", e.getMessage());
            }
        }
        return MallUrlConstant.ORDER_REDIRECT_TO_TRADE;
    }

}
